"All" banks in Germany are run by less than 10 data centers. The second biggest, Fiducia, operates about 600 banks. This is one API for 600 banks. For the API

"All" banks in Germany are run by less than 10 data centers. The second biggest, Fiducia, operates about 600 banks. This is one API for 600 banks. For the API - almost all business accounts support HBCI or EBICS. For example my tax accountant and tax software have full access to my business account.